Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR10061)
Wireless applications in healthcare

RIR1006-07
ULP-AMI
401 - 402 MHz
MEDS and ULP-AMI
Edition 4.1 / 01.01.2020

Nr Parameter2)DescriptionComments
1Radiocommunication serviceMobile-
2ApplicationULP-AMIUltra Low Power Active Medical Implant com-munication systems (ULP-AMI). This RIR covers systems specifically designed for the purpose of providing non-voice digital communications between active medical implants and/or body-worn devices and other associated peripherals used for transferring non-time critical individual patient-related physiological information.
3Frequency band401 - 402 MHz-
4Channelling25 kHz.
Individual transmitters may combine adjacent 25 kHz channels for increased bandwidth up to 100 kHz.		Techniques to access spectrum and mitigate interference that provide at least equivalent performance to the techniques described in harmonised standards adopted under Directive 2014/53/EU must be used. Alternatively a duty cycle limit of 0,1 % may also be used.
5Modulation / Occupied bandwidth--
6Direction / Separation--
7Transmit power / Power densityMax. 0.25 uW e.r.p. for systems using LP/LDC.
Max. 25 uW e.r.p. for systems using LBT/AFA.		LP = Low Power. LDC = Low Duty Cycle.
AFA = Adaptive Frequency Agility. LBT= Listen Before Talk.
Refer to EN 302 537 for functions and limits of MEDS with LBT/AFA.
8Channel access and occupation rulesDuty Cycle max. 0.1% for 0.25 uW e.r.p. power limit.
LBT/AFA for 25 uW e.r.p. power limit.		Techniques to access spectrum and mitigate interference that provide at least equivalent performance to the techniques described in harmonised standards adopted under Directive 2014/53/EU must be used. Alternatively a duty cycle limit of 0,1 % may also be used.
9Authorisation regimeSwitzerland: License exempt.
Liechtenstein: General authorisation.		Operation on NIB / NPB. (Non interference basis / non protection basis).
10Additional essential requirements--
11Frequency planning assumptionsEN 302 537-
12Planned changes--
13ReferenceEN 302 537 / ERC/DEC/(01)17 /-.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/153
2012/9504/CH		-
15RemarksEN 301 489-27-

Normative part: 1 to 11
Informative part: Nr 12 to 15

1) RIR for similar and/or other applications are available under: https://www.bakom.admin.ch/bakom/en/home/frequenzen-antennen/nationaler-frequenzzuweisungsplan/schnittstellen-anforderungen.html
2) For explanations and legal status, please refer to basis document 784.101.21 / RIR0000